Title :
DNA as a template in self-assembly of one-dimensional au nanostructure
Author :
Wang, Dau-Chung ; Chen, Gen-You ; Chen, Ken-Yen ; Tsai, Cheng-Hsien
Author_Institution :
Grad. Sch. of Eng. Sci. & Technol., Nat. Yunlin Univ. of Sci. & Technol., Yunlin, Taiwan
Abstract :
In this study, an alkanethiol-assisted self-assembly of Au nano-particles and its size tunable technique were confirmed. To fabricate a one-dimensional template, λ-DNA was first laid on mica substrate by dropping diluted λ-DNA solution, 12.6 ng/μl, on freshly cleaved mica. By dropping colloidal gold solution on mica surface with the DNA templates laid on it, the λ-DNA was then pulled straight via capillary force by applying solvent absorbing tissue at outer circumference of the mica substrate. And it fixed on mica via gravity force and Van der Waals force between mica surface and the DNA. Au nano-particles would be arrayed along the straight DNA molecules to form one-dimensional Au arrays.
Keywords :
DNA; bioelectric phenomena; biological techniques; biological tissues; gold; molecular biophysics; nanofabrication; nanoparticles; self-assembly; van der Waals forces; Au; DNA templates; Van der Waals force; alkanethiol-assisted self-assembly; capillary force; colloidal gold solution; diluted λ-DNA solution; gold nanoparticles; gravity force; mica substrate; mica surface; one-dimensional Au arrays; one-dimensional nanostructure; one-dimensional template; self-assembly; size tunable technique; solvent absorbing tissue; straight DNA molecules; DNA; Gold; Gravity; Self-assembly; Solvents; Substrates; λ-DNA; freshly cleaved mica; one-dimensional Au arrays; one-dimensional template; self-assembly;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems (NEMS), 2011 IEEE International Conference on
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-61284-775-7
DOI :
10.1109/NEMS.2011.6017375
